# よくわかる算数小学３年（ダンケ） vs 九九

The clearest difference is ads: よくわかる算数小学３年（ダンケ） at none against 九九's shown. 九九's advantage is update cadence (every 5 months vs every 30 months) and iOS requirement (12.0 vs 18.2). On price, in-app purchases and device support there is nothing between them.

Both are free to download. よくわかる算数小学３年（ダンケ） sells 1 one-off in-app purchase and 九九 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

よくわかる算数小学３年（ダンケ） ships an update every 30 months, 九九 every 5 months. The most recent releases landed on October 10, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | よくわかる算数小学３年（ダンケ） | 九九 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.5 (2 ratings)](https://appshunter.io/ios/app/easy/id1611285814/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 30 months | **Every 5 months** |
| Monetization | — | Free with in-app purchases |
| Size | 9 MB | 109 MB |
| Requires iOS | 18.2 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Norio Takeda](https://appshunter.io/developer/1485221811) | [Sumie Watanabe](https://appshunter.io/developer/1349237972) |

## What reviewers say

### よくわかる算数小学３年（ダンケ）

[App page](https://appshunter.io/ios/app/id1525990429)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ゴールドコイン | $7.99 | one-time |


### 九九

[App page](https://appshunter.io/ios/app/easy/id1611285814)

This app offers a comprehensive multiplication and word problem learning experience with randomized practice questions. It includes a review mode for incorrect answers and is free to use with optional ad removal via in-app purchase.

**Highlights:** Randomized multiplication problems, Word problem practice, Review mode for incorrect answers, Calendar feature, Name and icon display for submissions

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 九九アプリバナー広告非表示 | $1.99 | one-time |


## Frequently asked questions

### Is よくわかる算数小学３年（ダンケ） free?

よくわかる算数小学３年（ダンケ） is free to download, with in-app purchases available.

### Is 九九 free?

九九 is free to download, with in-app purchases available.

### Do よくわかる算数小学３年（ダンケ） or 九九 have ads?

九九 shows ads; よくわかる算数小学３年（ダンケ） does not.

### Which is updated more often, よくわかる算数小学３年（ダンケ） or 九九?

よくわかる算数小学３年（ダンケ） ships an update every 30 months, and 九九 every 5 months. Most recently, よくわかる算数小学３年（ダンケ） was updated on October 10, 2026 and 九九 on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*